Upon contraction, the smallest motor unit, that is, the one associated with the fewest muscle fibers, is the normally the first activated. As the contraction progresses, larger motor units are brought into play.Efficient muscle contraction depends on the motor units within a muscle working effectively together.pon contraction, the smallest motor unit, that is, the one associated with the fewest muscle fibers, is the normally the first activated. As the contraction progresses, larger motor units are brought into play.
Trojan programs are most dangerous because they can create a back door. into your computer that gives malicious hackers direct access to your. system. Once installed, Trojans can hijack your PC and upload usernames, passwords, credit card numbers, social security numbers, and bank account.
What is a computer virus and what is a web scripting virus? A computer virus is a computer program that can replicate itself and spread to multiple computers. It is used to refer to malware, including adware and spyware programs. Malware includes Trojan horses, rootkits, and computer worms. A web scripting virus is a type computer security vulnerability through websites that breaches your web browser security. This allowes the attackers to inject client-side scripting into the web page.